首页|Constructal design of a rectangular parallel phase change microchannel in a three-dimensional electronic device

Constructal design of a rectangular parallel phase change microchannel in a three-dimensional electronic device

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Based on constructal theory,a rectangular parallel phase change microchannel model in a three-dimensional electronic device(TDED)is established with R134a as the cooling fluid.Based on the minimization of a complex function(CF)composed of linear weighting sum of maximum temperature difference and pumping power consumption,constructal design of the TDED is conducted first;and then,maximum temperature difference and pumping power consumption are minimized by non-dominated sorting genetic algorithm-Ⅱ methods.The results reveal that there exist an optimal mass flow rate(0.0012 kg/s)and a quadratic optimal aspect ratio(AR)(0.39)of the microchannel which lead to quadratic minimum CF(0.817).Compared with the original value,the CF after optimization is reduced by 18.34％.Reducing the inlet temperature of cooling fluid and microchannel number appropriately can help to enhance the overall performance of TDED.By using the artificial neural network and genetic algorithms in the toolboxes of Matlab software,the optimal AR gained in the Pareto solution set is located between 0.2-0.45.The smallest deviation index among three discussed strategies is 0.346,and the corresponding optimal AR is 0.413,which is selected as the optimal design strategy of the microchannel in the TDED under multiple requirements.The findings in this study can serve as theoretical guides for thermal designs of electronic devices.

constructal theoryparallel microchannelevaporation phase changethree-dimensional electronic devicemulti-objec-tive optimizationartificial neural network

ZHANG JiWen、FENG HuiJun、CHEN LinGen、GE YanLin

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Institute of Thermal Science and Power Engineering,Wuhan Institute of Technology,Wuhan 430205,China

Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment,Wuhan 430205,China

School of Mechanical & Electrical Engineering,Wuhan Institute of Technology Wuhan 430205,China

College of Power Engineering,Naval University of Engineering,Wuhan 430033,China

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National Natural Science Foundation of ChinaGraduate Innovative Fund of Wuhan Institute of Technology

52171317CX2022073

2024

10.1007/s11431-023-2530-3

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子：1.056
ISSN：1674-7321
年,卷(期)：2024.67(5)